An example of basic research is
A) the development of new plastics that can be recycled.
B) the study of the relationship between the amount of automobile emissions gases in the atmosphere and the decomposition of atmospheric ozone.
C) the study of the composition of the atom.
D) the design of new batteries for electric cars.
E) the study of natural compounds in sea animals to look for new molecules that can be used for medicine.
C
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What role does water play in generating magma?
A) Water lubricates the path for subducting plates, allowing them to subduct deeper. B) Water lowers the density of the rock, allowing it to melt. C) Water cools the rock, preventing melting. D) Water lowers the melting temperature of the rock, allowing it to melt.
Chinook winds are ____
a. cold, moist, and upslope winds b. warm, dry, and downslope winds c. cold, dry, and downslope winds d. warm, moist, and upslope winds
Studies of cores from polar ice sheets indicate a correlation between greenhouse-gas concentrations and temperatures but do not indicate cause-and-effect.
Answer the following statement true (T) or false (F)
Point sources of pollution include all of the following except
A. wastewater from a factory. B. organic matter discharged from a meat-packing plant. C. a septic tank leaking sewage. D. salt runoff from roads.